Global Patent Index - EP 0260088 A3

EP 0260088 A3 19881012 - LINE PRESSURE CONTROL SYSTEM FOR AN AUTOMATIC TRANSMISSION

Title (en)

LINE PRESSURE CONTROL SYSTEM FOR AN AUTOMATIC TRANSMISSION

Publication

EP 0260088 A3 19881012 (EN)

Application

EP 87307877 A 19870907

Priority

JP 21342286 A 19860910

Abstract (en)

[origin: EP0260088A2] A microcomputer (Figure 2) is provided for controlling an automatic transmission for a motor vehicle. The microcomputer operates to control line pressure in a hydraulic circuit for the automatic transmission. A control circuit (45) is provided to respond to an output signal (37) of the microcomputer (Figure 2) for energizing a solenoid (56) to control the line pressure. A driving circuit (46) is provided to respond to closing operation of a starter motor switch (48) of an engine to energize the solenoid (50) to reduce the line pressure.

IPC 1-7

F16H 5/60

IPC 8 full level

B60W 10/04 (2006.01); B60W 10/10 (2012.01); B60W 10/103 (2012.01); F16H 61/00 (2006.01); F16H 61/12 (2010.01); G05D 16/20 (2006.01)

CPC (source: EP US)

B60W 30/194 (2013.01 - EP US); F02N 19/00 (2013.01 - EP US); F16H 61/0021 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

CH DE GB LI SE

DOCDB simple family (publication)

EP 0260088 A2 19880316; EP 0260088 A3 19881012; EP 0260088 B1 19901122; AU 584519 B2 19890525; AU 7797687 A 19880317; DE 3766328 D1 19910103; JP S6367448 A 19880326; US 4831896 A 19890523

DOCDB simple family (application)

EP 87307877 A 19870907; AU 7797687 A 19870904; DE 3766328 T 19870907; JP 21342286 A 19860910; US 9061487 A 19870828